A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
New Challenges in Geotechnique for Ground Hazards Due to Intensely Strong Earthquake Shaking
Abstract During the 2007.7.16 earthquake that rocked Kashiwazaki area southwest of Niigata city, multiple series of strong motions were recorded in excess of 1000 gals in terms of peak acceleration. The premise of the nuclear power stations nearest the epicenter suffered distortions, settlements and uneven sags on the ground surface, although no vital damage was incurred to the buildings and facilities. In the city area of Kashiwazaki, the sea walls along the coast for protecting high tides and waves were displaced largely although these seemed to be fairly sturdy. Looking over the damage features manifested, one can realize some new problems of geotechnical importance for which efforts should be expended particularly for the ground conditions and soil structure interaction subjected to intense shaking. These include the significant amount of settlement of the ground consisting of partly saturated silty sand and the likelihood of remarkable increase in earth pressure due to ratcheting type of interaction between wall structures and adjacent soil deposits. These issues will be addressed as a novel area of research in the earthquake geotechnical engineering in this paper.
New Challenges in Geotechnique for Ground Hazards Due to Intensely Strong Earthquake Shaking
Abstract During the 2007.7.16 earthquake that rocked Kashiwazaki area southwest of Niigata city, multiple series of strong motions were recorded in excess of 1000 gals in terms of peak acceleration. The premise of the nuclear power stations nearest the epicenter suffered distortions, settlements and uneven sags on the ground surface, although no vital damage was incurred to the buildings and facilities. In the city area of Kashiwazaki, the sea walls along the coast for protecting high tides and waves were displaced largely although these seemed to be fairly sturdy. Looking over the damage features manifested, one can realize some new problems of geotechnical importance for which efforts should be expended particularly for the ground conditions and soil structure interaction subjected to intense shaking. These include the significant amount of settlement of the ground consisting of partly saturated silty sand and the likelihood of remarkable increase in earth pressure due to ratcheting type of interaction between wall structures and adjacent soil deposits. These issues will be addressed as a novel area of research in the earthquake geotechnical engineering in this paper.
New Challenges in Geotechnique for Ground Hazards Due to Intensely Strong Earthquake Shaking
Ishihara, Kenji (author)
1
2009-01-01
24 pages
Article/Chapter (Book)
Electronic Resource
English
New Challenges in Geotechnique for Ground Hazards Due to Intensely Strong Earthquake Shaking
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